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Dx Head Onto A Hf Block

Discussion in 'HYBRID -> ED-EF / DA' started by WhItE90CRX, May 19, 2003.

  1. WhItE90CRX

    WhItE90CRX Member

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    Hey I was just wondering if I could go to the junkyard, and pick up a Dx head, and simply bolt it onto my Hf; with no other modifactions other than that. If not what else would I have to do, and would I be getting a good power increase from this?
     
  2. CRX-YEM

    CRX-YEM Super Moderator Moderator VIP

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    I believe the HF is an 8 vavle head and the DX a 16 Vavle. Which would mean the HF pistons don't have the correct vavle reliefs.

    If this is the case then it won't work. I could be mistaken, tho.
     
  3. Slo86GT

    Slo86GT Super Moderator

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    Pull the head and check.. I've heard conflicting info on this subject.
     
  4. XZILER8

    XZILER8 Senior Member

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    Look under Articles at the one titled "Creating an HF All-Motor Monster"

    It points out exactly what to do to make your HF run high 14's for under $500.
     
  5. WhItE90CRX

    WhItE90CRX Member

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    Yea, I saw the artical, but what I wanna know is that if I go get the head out of a junkyard, assuming it will work, can i just take the old one off, bolt on the new one, and start it up? Or will I have to play with the timing, ect. ect. Anothing thing is that the hf is a 8 valve, and the head is a 16 valve... does that mean it will not work, because of the pistons, because I've heard that an hf is a dx with the EXACT bottom end... /shrugs if it doesn't work o well. Just curious, because I can get a dx head for nearly nothing.
     
  6. Havok

    Havok Senior Member

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    talk to chethewitt, the person who wrote the atricle, y0
     
  7. CRX-YEM

    CRX-YEM Super Moderator Moderator VIP

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    you'd really have to pull the head or talk to a person that is 100% sure that the pistons have reliefs for all 16 valve's
     
  8. WhItE90CRX

    WhItE90CRX Member

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    Alright, thanks a bunch guys. I'll pull the head of, and see how it goes.
     
  9. whatdahieu

    whatdahieu Senior Member

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    go here and do this crx.honda-perf.org/articles/z6swap/z6swap.html
    i think you'll be happier
     
  10. whatdahieu

    whatdahieu Senior Member

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